Three people were martyred and five injured in a bomb attack on a vehicle of the security personnel near a railway station in Ghotki on Friday, reported 24NewsHD TV channel.
The bomb fitted to a motorcycle targeted the Rangers personnel on duty at Ghota Market near Khanpur Mehar Railway Station in District Ghotki of Sindh.
Two Rangers men and a passerby were killed and five others were injured in the bomb attack. The Rangers personnel were identified as Zahoor Ahmad and Fayyaz Ahmad while the passerby was named as Ghulam Mustafa Bhayyo.
Rangers and police personnel rushed to the site after the bomb blast. They shifted the bodies to a nearby hospital and cordoned off the area to nab the culprits.
There was so far no claim of responsibility.
On June 12, a rare bomb blast at a market in Rawalpindi had killed at least one person and wounded 15 others.
There was no claim of responsibility for the June 12 explosion, which took place as people were buying from street vendors.
Pakistan has experienced scores of militant attacks in recent years, but it is rare for them to occur in Rawalpindi.
This was the first bomb blast in the city since 2015.
The market bombing came two weeks after suspected militants killed two policemen manning a roadside checkpoint in Rawalpindi.
Tragedy follows tragedy
A member of the Sukkur bomb disposal squad died when their vehicle overturned near Mehsaru while travelling towards Ghotki.
The martyred personnel was identified as Sub-Inspector Maihoon Khan.
According to the police, the bomb disposal squad was travelling on call of duty to Ghotki following bomb attack on the Rangers vehicle.